Upstream & Downstream NOx Sensor Set and similar items

Upstream Downstream NOx Sensor Set Compatible with 2011 Chevrolet Silverado 2500HD Diesel V8 6.6L Replace# 12671387 12671388 Item Description About this item Fitment: This Upstream Downstream NOx Sensor Set is compatible with 2011 Chevrolet Silverado 2500HD diesel Part Number: Upstream: Replace for 12671387. Downstream: Replace for 112671388. Ensuring a perfect fit and function equivalent to the original sensor Premium Quality: Manufactured using high-grade materials to ensure durability, reliability, and a long service life even under harsh operating conditions NOx Sensor Set: Upstream: Measures NOx levels before treatment, helps in optimizing engine performance. Downstream: Measures NOx levels after treatment, ensures the effectiveness of the emission control system Easy Installation: Designed for a straightforward installation process, allowing for quick and hassle-free replacement of the old or faulty sensor ? See more product details Payment We accept payment only through PAYPAL Shipping We ship products worldwide through standard express courier service, it will reach within 7 to 10 days to abroad buyers, we ship the product after recieved clear payment and give full information about shipment to the buyer Return We accept product return 25 days from delivery date but product should be in original condition.